Kramer Electronics VA-8xl user manual Connecting the RS-485 Control Interface

6.3.3Connecting the RS-485 Control Interface

To connect an RS-485 connector on one VA-8xlunit to an RS-485 connector on another unit:

1.Connect the “+” PIN on the first VA-8xl unit to the “+” PIN on the second VA-8xlunit

2.Connect the “-” PIN on the first VA-8xl unit to the “-” PIN on the second VA-8xlunit

3.If shielded cable is used for an RS-485 connection, connect the shield to the Ground PIN.

Figure 12 illustrates the RS-485 line that connects:

•Between each VA-8xlunit

•To the PC via a Kramer Tools VP-43xlInterface Converter (connect the PC’s 9-pin D-sub COM port to the “RS-232 in” 9-pin D-sub (F) port on the VP-43xl. Next, connect the RS-485 port on the VP-43xlto the RS-485 ports on the VA-8xlunits)

16 VA-8xl - Controlling the VA-8xl